Knowledge Base

Like all good SPLat controllers, the HMI430/700 has 2 headers for TTL Xwire making it easy to place the HMI in a daisy-chain of Xwire peripherals.  One of the Xwire pins is 0V, the other is the communications line.  Just connect pin 1 to pin 1 and pint 2 to pin 2 for all devices.  Refer to Xwire instructions for programming information.

TTL Xwire is a cheap solution for wiring Xwire devices within a cabinet.  If you need it, Xwire also supports RS485 allowing Xwire devices to be located over 1km away.